Malnutrition is a common worry among people with COPD. A high-nutrient diet – rich in lean protein and antioxidant vitamins but lower in saturated fats, simple carbohydrates and sodium – will support health and may help prevent respiratory problems from getting worse.

However, you may want to avoid gas-producing foods such as broccoli or cabbage (as well as carbonated beverages), as gas can inflate the stomach and make it harder for lungs to expand.